By Eric Yep 
 

Crude-oil futures traded in a narrow price range in Asia Monday as markets weighed events in Ukraine and China's manufacturing data that pointed to further slowing of the economy.

On the New York Mercantile Exchange, light, sweet crude futures for delivery in October traded at $95.79 a barrel at 0424 GMT, down $0.17 in the Globex electronic session. October Brent crude on London's ICE Futures exchange fell $0.02 to $103.17 a barrel.

Nymex crude ended 2.25% lower in August and Brent crude lost 2.67% during the month. Both oil benchmarks are down for two consecutive months but recovered slightly in the final week of August on the back of positive U.S. economic data and Russia-Ukraine tensions.

Amid reports of further incursions by Russian soldiers into Ukraine over the weekend, the European Union is considering further sanctions against Moscow unless it scales back its intervention in Ukraine.

Given the recent escalation in Ukraine, Russia is the wildcard for the oil market, "but oil exports from the country are too important to be targeted by sanctions so even output there is unlikely to be disrupted," Tom Pugh, commodities economist at Capital Economics said in a report.

"[W]e remain confident that prices have further to fall over the medium term, with Brent dropping as low as $90 next year," he said.

Early Monday, data showed China's official Purchasing Managers Index fell to 51.1 in August from 51.7 in July, indicating further softening in the country's economy that's bearish for oil demand.

Nymex reformulated gasoline blendstock for October--the benchmark gasoline contract--rose 66 points to $2.6295 a gallon, while October diesel traded at $2.8605, 4 points higher.

ICE gasoil for September changed hands at $867.75 a metric ton, up $3.00 from Friday's settlement.

Write to Eric Yep at eric.yep@wsj.com